Authors : T. Edwin D. Thangam, V. Nehru Kumar and Y. Anitha Vasline
Abstract: Tanneries in an industrial area of Ranipet (India) manufactured sodium bi-chromate crystals and chromium sulphate tanning powder during 1976-1996. Tamil Nadu Chromate and Chemicals (TCCL) factory generated approximately 1,60,000 m ton of chromium waste which is dumped in the factory premises to a height of 2-4 m of Hexavalent chromium Cr (6). Disposal of this waste face a threat to the people residing in around the area for 40 years. Disposal of the chromium waste is the great problem to be addressed. It was observed that the Hexavalent chromium contamination reached to a depth of 15 m in the upstream of the dyke and in the downstream to a depth of 8-10 m. The migration of Hexavalent chromium is very slow with a ground water velocity of 10 m/year. The sludge is mixed with the soil and the ground water being contaminated with chromium. Because of this environmental effect we had taken initiative to make remediation onsite. As a remedial measure an onsite Geo chemical fixation method may be adopted for decontamination of hexavalent chromium.
T. Edwin D. Thangam, V. Nehru Kumar and Y. Anitha Vasline, 2018. Decontamination of Hexavalent Chromium by Geo Chemical Fixation Method in a Hazardous Dump Site, Ranipet, Tamil Nadu, India. Journal of Engineering and Applied Sciences, 13: 208-212.